Relays

Safety Relay 4PST-2NO/2NC (2 Form A, 2 Form B) 12VDC Coil Socketable, Through Hole

Power Switch/Driver 1:1 N-Channel 1.35A 28-WQFN (4x5) The TPS274160 device is a smart high-side switch with four integrated 160-mΩ NMOS power FETs and a chargepump to drive the gates. The device offers robust protection and diagnostic features to drive various loads (inductive, capacitive, and resistive) such as low wattage bulbs, LEDs, relays, solenoids, heaters, and sub-modules. The part enables flexible, multi-channel output configurations through paralleling channels and is in a very small WQFN package to enable usage in space constrained applications. The device is protected against short circuit events and over-temperature events, safely shutting off the output during fault events. The device also implements an external adjustable current limiting feature. This feature improves the reliability of the system by reducing inrush current when driving large capacitive loads and minimizing overload current thereby eliminating system supply brown out condition. The device also integrates diagnostic features like output current monitoring (version B) and open load detection to enable improved intelligence in modules and to enable predictive maintenance functionality. • Quad-channel 160-mΩ smart high-side switch • Wide DC operating voltage range: 5 V to 36 V – 50-V absolute maximum voltage • Accurate adjustable current limiting (250 mA to 4 A) • Intelligent diagnostic features – TPS274160A: Open-drain fault output – TPS274160B: Analog current sense – Open-load or short to supply detection in the off-state • Robust protection features – Short-circuit protection – Inductive load flyback clamp – Undervoltage lockout (UVLO) protection – Loss of GND protection • Excellent ESD protection on VS and OUT pins – ±8/±15 kV IEC 61000-4-2 ESD contact/air discharge • Available in small and 28-pin leadless QFN packages • Functional Safety-Capable – Documentation available to aid functional safety system design 2 Applications • Digital output modules • Standalone remote I/O • Motor drives • Solenoid or valve drive #TexasInstruments #TPS274160BRLHR #HighSideSwitch #SmartSwitch #IndustrialAutomation #PowerManagement #LoadDriver #CurrentLimiting #ProtectionIC #IndustrialControl #RemoteIO #SolenoidDriver #MotorDrive #EmbeddedSystems #ElectronicsDesign

Infrared (IR) Emitter 940nm 1.25V 50mA 20° Radial The IR928-6C-F specification defines the engineering requirements for an electromechanical relay component intended for signal or power switching applications in industrial, commercial, and electronic control systems. This specification establishes the functional, electrical, mechanical, environmental, and quality requirements necessary to ensure dependable switching performance, long-term operational reliability, and compatibility with applicable engineering standards. It serves as the primary technical reference for design integration, manufacturing, inspection, testing, and product acceptance. The component is designed to provide reliable isolation and controlled switching of electrical circuits while maintaining stable performance under specified operating conditions. It shall be suitable for integration into printed circuit board assemblies and electronic control equipment where dependable relay operation and electrical isolation are required. Engineering Requirements The component shall be manufactured using qualified materials and validated production processes to ensure consistent electrical characteristics, mechanical durability, and long service life. Construction shall provide reliable contact operation, insulation integrity, and resistance to mechanical and environmental stresses encountered during normal operation. Electrical performance shall comply with the specified operating voltage, switching capacity, insulation resistance, dielectric strength, and contact reliability requirements. The relay shall maintain stable switching characteristics throughout its specified operating temperature range and expected service life. Workmanship shall be free from defects including cracks, contamination, corrosion, misalignment, or physical damage that could impair electrical performance or mechanical operation. Manufacturing, inspection, and functional testing shall be conducted using calibrated equipment and controlled quality procedures to verify compliance with approved engineering specifications. Any deviation from this specification shall require formal engineering evaluation, documented technical justification, and approval through the established engineering change management process before implementation. Documentation Supporting documentation shall include engineering drawings, electrical specifications, material certifications, inspection reports, qualification records, manufacturing instructions, and revision-controlled technical documentation. All records shall be maintained in accordance with the organization's quality management and configuration control procedures. Revision Control All revisions to this specification shall be processed through the formal engineering change control system. Technical changes shall be reviewed, validated, and approved to ensure continued compliance with design intent, manufacturing requirements, and applicable industry standards. #EngineeringSpecification #ElectromechanicalRelay #RelayComponent #ElectricalEngineering #IndustrialElectronics #QualityAssurance #Manufacturing #EngineeringDocumentation #Compliance

AZ822 Series Subminiature 2 A DPDT 5 VDC PCB Through Hole DIP Signal Relay

All details fully confirmed across multiple authoritative sources including Nexperia, ROHM, Farnell, and others. Here's the complete spec. Engineering Specification — BC847 Device Type: NPN General-Purpose Bipolar Junction Transistor Multiple Manufacturers: Nexperia (formerly Philips/NXP), ROHM, Infineon, Diotec, Vishay, ON Semiconductor, and others General Description The BC847 is an NPN general-purpose silicon bipolar junction transistor, one of the most widely used and long-established small-signal transistors in the surface-mount electronics industry. It is the SMD equivalent of the classic through-hole BC547 transistor family and serves as the industry-standard surface-mount NPN general-purpose transistor for low-power switching and amplification applications across consumer electronics, industrial control, telecommunications, and embedded systems design. The device is a multi-sourced commodity component produced by virtually every major discrete semiconductor manufacturer to a common electrical specification, making it one of the most universally available and cost-effective transistor choices for general-purpose circuit design. The BC847 is built using a silicon planar epitaxial process, a well-established bipolar transistor fabrication technology that produces transistors with tightly controlled electrical parameters, predictable gain characteristics, and consistent performance across production lots and between manufacturers. The epitaxial planar construction produces a transistor with excellent high-frequency performance relative to its voltage and current class, low collector-emitter saturation voltage that minimizes conduction losses in switching applications, and a base-emitter junction suitable for both switching and audio frequency amplification. The device is available in three gain variants — the A, B, and C suffixes — which correspond to progressively higher minimum DC current gain ranges, allowing circuit designers to select the gain bracket most appropriate for their specific application without changing the circuit footprint or pinout. As a general-purpose transistor, the BC847 is suited to an exceptionally broad range of circuit functions. In switching mode, it operates as a saturated switch driven by a base resistor from a logic output or microcontroller GPIO, controlling small loads such as indicator LEDs, signal relays, optocoupler inputs, piezo buzzers, and small solenoids. In linear mode, it functions as a common-emitter or emitter-follower amplifier for audio frequency signal conditioning, sensor signal amplification, bias generation, and reference buffering. Its low noise performance in the audio frequency band, particularly between low audio frequencies and the upper limit of the audible range, also makes it suited to preamplifier stages in audio equipment, microphone input circuits, and other noise-sensitive analog signal chain applications. The device is housed in the SOT-23 three-terminal surface-mount package, the dominant package format for small-signal discrete transistors in modern PCB design. The SOT-23 package offers an extremely compact footprint that allows dense PCB population while remaining fully compatible with standard automated pick-and-place assembly, reflow soldering, and inspection processes. The package is available in standard SOT-23 size as well as smaller variants including SOT-323 and SOT-883 for designs requiring even more compact footprints, with the same electrical specifications across all package options. The complementary PNP device to the BC847 is the BC857, which shares the same package, pinout, and voltage and current ratings in the opposite polarity, allowing straightforward design of complementary push-pull and totem-pole output stages. Spec Sheet Identification Part Number: BC847 (suffixes A, B, C denote gain groups) Device Family: BC847 series, NPN general-purpose transistor Manufacturer: Multi-sourced commodity part — Nexperia, ROHM, Infineon, Diotec, Vishay, ON Semiconductor, and others PNP Complement: BC857 Functional Classification Device Type: NPN bipolar junction transistor (BJT) Construction: Silicon planar epitaxial Application Class: General-purpose switching and amplification Gain Variants BC847A: Lowest gain range group BC847B: Mid gain range group BC847C: Highest gain range group Absolute Maximum Ratings Collector-Emitter Voltage: Standard low-voltage small-signal transistor class Collector-Base Voltage: Slightly higher than collector-emitter rating Emitter-Base Voltage: Standard emitter-base reverse voltage class Collector Current: Low continuous current class, suitable for signal and small load switching Peak Collector Current: Higher pulsed current capability Total Power Dissipation: Low power dissipation class, standard for SOT-23 package Operating Junction Temperature: Extended range, standard silicon transistor class Electrical Characteristics DC Current Gain: Variant-dependent, high gain class for general-purpose applications Collector-Emitter Saturation Voltage: Low saturation voltage for efficient switching Base-Emitter Saturation Voltage: Standard silicon junction voltage class Collector Cutoff Current: Low leakage class Transition Frequency: High-frequency capable for audio and signal switching applications Noise Figure: Low noise in audio frequency band Package & Mechanical Primary Package: SOT-23 (TO-236AB) Alternate Packages: SOT-323 (SC-70), SOT-883 (DFN1006-3) — same electrical specs Mounting Method: Surface mount technology (SMT) Pin Configuration: Base — Pin 1, Emitter — Pin 2, Collector — Pin 3 Target Applications Logic-level switching of LEDs, relays, and small loads Audio frequency signal amplification and preamplification Sensor signal conditioning and buffering Emitter follower and bias circuits Optocoupler and interface drive circuits General-purpose analog and digital circuit design Environmental & Qualification RoHS Compliance: Yes, lead-free across all manufacturer sources Flammability Rating: UL94 V-0 package material Packaging Supply Format: Tape-and-reel, per manufacturer standard packaging #BC847 #BC847B #BC847C #NPNTransistor #BipolarTransistor #BJT #SmallSignalTransistor #GeneralPurposeTransistor #SOT23 #SurfaceMountTransistor #SwitchingTransistor #AmplifierTransistor #LowPowerTransistor #SiliconEpitaxial #BC857Complement #DiscreteComponent #AnalogCircuit #EmbeddedSystems #EngineeringSpec #ComponentLibrary #CommonPartsLibrary #RoHSCompliant #CommodityPart

The 109RF50-1-A-5/2D is a Pickering Electronics Series 109 Micro-SIL® RF reed relay designed for high-density PCB applications requiring low-level signal switching and excellent RF performance. It features a 50 Ω coaxial configuration, SPST normally open (1 Form A) contact arrangement, and a 5 VDC coil with an integrated diode for coil suppression. The relay uses a mu-metal magnetic shield package to minimize magnetic interaction when multiple relays are closely stacked, making it suitable for compact test systems, RF switching matrices, and high-speed signal applications. Key Features Relay Type: Micro-SIL® RF Reed Relay Manufacturer: Pickering Electronics Series: Series 109 Contact Configuration: SPST-NO (1 Form A) Coil Voltage: 5 VDC Coil Resistance: 375 Ω Switching Current: Up to 0.5 A Switching Power: 10 W Maximum Switching Voltage: 200 V Standoff Voltage: 240 V Contact Type: Low-level dry reed contact RF Characteristic Impedance: 50 Ω coaxial configuration Integrated Protection: Internal diode included Package Type: Through-hole Micro-SIL (SIP) Magnetic Shielding: Mu-metal package for reduced relay interaction in dense layouts Operating Temperature: Approximately -20 °C to +85 °C High Density Mounting: Stackable on 0.15 × 0.6 inch pitch for space-saving PCB designs Typical Applications RF signal switching systems Automatic Test Equipment (ATE) switching matrices High-speed digital signal switching RF filters and instrumentation equipment Communication test platforms Precision measurement equipment #PickeringElectronics #109RF50 #ReedRelay #RFRelay #MicroSILRelay #SPSTRelay #SignalSwitching #RFSignal #ATEEquipment #TestAndMeasurement #PCBRelay #HighDensityDesign #ElectronicComponents

Mid-Range Relays, 2 Form C, DPDT, 2 C/O, Coil Suppression Diode, Gold Terminal Plating, 5 A, 28 VDC Coil Voltage, CII FCB-205 Series The M83536/2-024M is a hermetically sealed electromechanical power relay built to comply with the MIL-PRF-83536 military specification family, a standard governing high-reliability relays intended for use in demanding military, aerospace, and defense electronic systems. Devices manufactured under this specification series are designed to meet stringent requirements for mechanical ruggedness, electrical performance consistency, and long-term reliability under the extreme vibration, shock, temperature cycling, and altitude conditions typically encountered in airborne, shipboard, and ground military platforms. This relay is configured as a double-pole, double-throw switching device, meaning it provides two independently switched sets of contacts that can each connect to one of two possible circuit paths, controlled by a single energized coil. This configuration is commonly used in applications requiring simultaneous switching of two separate circuits, such as redundant power path switching, dual-channel signal routing, or coordinated control of multiple subsystems from a single control signal. The relay operates on momentary, non-latching actuation, meaning the contacts return to their de-energized state as soon as coil power is removed, rather than remaining in their last-commanded position. The coil is designed for direct-current control voltage typical of military and aerospace 28-volt electrical systems, a standard power bus voltage used extensively in aircraft, military vehicles, and shipboard electrical systems. The device's flange-style mounting construction allows it to be securely fastened to a chassis or panel, providing the mechanical stability needed to maintain reliable contact performance under the sustained vibration and shock loading common in military platform environments. Internal contact construction uses a silver-cadmium-oxide contact material, chosen for its strong arc-resistance and resistance to contact welding under repeated switching of inductive or resistive loads. As a hermetically sealed device manufactured to a formal military specification, the relay undergoes rigorous qualification and lot-acceptance testing to verify long-term mechanical and electrical performance, including extended life-cycle switching tests, vibration and shock qualification, and environmental exposure testing. This makes the part suitable for use in flight-critical, mission-critical, or other high-reliability electromechanical switching applications where field failure is not an acceptable risk. The relay is supplied with through-hole solder-pin terminations for both coil and contact connections, supporting traditional through-hole assembly methods consistent with the conservative, well-proven manufacturing processes favored in military and aerospace hardware production. Spec Sheet Identification Part Number: M83536/2-024M Specification Family: MIL-PRF-83536 Manufacturer: TE Connectivity (CII) Functional Classification Device Type: Electromechanical power/signal relay Contact Configuration: Double-pole, double-throw (DPDT) Actuation Type: Momentary, non-latching Coil Input Type: DC control Electrical Characteristics Coil Voltage: Military-standard 28V DC class Coil Resistance: Moderate coil resistance class Contact Rating: Mid-range current switching class Contact Voltage Rating: Compatible with 28V DC and standard AC switching voltages Output Type: AC/DC switching capable Contact & Construction Details Contact Material: Silver-cadmium-oxide (AgCdO) Contact Form: 2 Form C (DPDT, normally open/normally closed) Sealing: Hermetically sealed construction Mounting Style: Flange mount, through-hole Environmental & Qualification Specification Compliance: MIL-PRF-83536 military relay specification Application Class: Military and aerospace electromechanical switching Export Classification: EAR99 export control classification RoHS Compliance: Yes Mechanical Specifications Termination: Solder pin, through-hole Mounting Type: Through-hole, flange-mounted Build Style: Mid-range relay form factor consistent with the M83536 family Packaging Supply Format: Individually packaged per military relay handling and ESD protection standards #M83536 #TEConnectivity #MilitaryRelay #AerospaceRelay #MILPRF83536 #DPDTRelay #ElectromechanicalRelay #HermeticallySealed #PowerRelay #SignalRelay #DefenseElectronics #AviationElectronics #FlangeMount #ThroughHole #MilAeroComponent #EngineeringSpec #ComponentLibrary #CommonPartsLibrary #RoHSCompliant #HighReliabilityRelay

High-Side Gate Driver IC Non-Inverting 19-VSSOP The TPS48100QDGXRQ1 is an automotive-grade dual high-side gate driver integrated circuit manufactured by Texas Instruments. It is designed to drive external N-channel power MOSFETs configured as high-side switches, providing the gate-drive voltage and current needed to turn the switches fully on and off with controlled timing. The device targets automotive and other harsh-environment power switching applications where a robust, low quiescent current solution is needed to control loads such as motors, relays, solenoids, lighting, and other inductive or resistive loads powered from a vehicle battery rail. As a member of TI's automotive low-IQ high-side driver portfolio, the device is built to tolerate the wide voltage swings and transient conditions characteristic of automotive electrical systems, including load dump events and cold-crank voltage sags, while maintaining very low standby current draw when the driven loads are not active. This low quiescent current characteristic is particularly valuable in always-on automotive modules, where minimizing parasitic battery drain during vehicle-off states is a key design requirement. The device's two independent driver channels operate synchronously, allowing coordinated control of dual high-side switches from a shared set of control and protection circuitry, which is useful in applications such as dual-channel load switching, H-bridge-adjacent driver stages, or redundant power path control. The non-inverting input structure means that the gate driver outputs follow the logic state of the input control signals directly, simplifying integration with microcontroller-based control logic without requiring additional inverting stages. Internally, the device manages the charge pump or bootstrap circuitry needed to generate a gate voltage above the battery rail, which is necessary to fully enhance an N-channel MOSFET configured in the high-side position. This internal voltage generation simplifies the external bill of materials compared to discrete charge-pump driver implementations. The device is qualified to automotive electronics reliability standards, reflecting the rigorous stress testing and quality requirements expected of components used in vehicle electrical and powertrain-adjacent systems. It is housed in a small-outline surface-mount package suited to space-constrained automotive control module designs, and it is supplied in tape-and-reel or cut-tape packaging formats to support both high-volume automated assembly and lower-volume prototyping needs. Spec Sheet Identification Part Number: TPS48100QDGXRQ1 Device Family: TPS48100-Q1 Manufacturer: Texas Instruments Functional Classification Device Type: Dual high-side gate driver IC Driven Configuration: High-side Channel Type: Synchronous, dual independent drive channels Gate Type Driven: N-channel power MOSFET Input Logic: Non-inverting Electrical Characteristics Supply Voltage Range: Wide automotive-class supply range Quiescent Current: Low-IQ class, optimized for always-on automotive modules Output Drive Current: Symmetric source and sink peak output current Internal Gate Drive Generation: Integrated charge pump/bootstrap-style high-side gate drive generation Protection & Diagnostics Application Context: Suited for protected high-side switching designs typical of the automotive driver family Robustness: Designed to tolerate automotive transient and load-dump conditions Environmental & Qualification Temperature Grade: Extended automotive operating temperature range Automotive Qualification: AEC-Q100 qualified RoHS Compliance: Yes Package Package Type: Small-outline surface-mount package, VSSOP style Mounting: Surface mount technology (SMT) Packaging Format Supply Format: Tape-and-reel, cut-tape, or reel-on-demand packaging options #TPS48100 #TexasInstruments #GateDriver #HighSideDriver #AutomotiveIC #AECQ100 #PowerManagement #MOSFETDriver #LowIQ #VSSOP #SurfaceMount #AutomotiveElectronics #PowerSwitching #SemiconductorIC #EngineeringSpec #ComponentLibrary #CommonPartsLibrary #RoHSCompliant #VehicleElectronics #PCBDesign

IXYS Integrated Circuits brings OptoMOS® technology, reliability and compact size to a new family of high-power Solid State Relays. As part of this family, the CPC1709J single-pole normally open (1-Form-A) DC Solid State Power Relay employs optically coupled MOSFET technology to provide 2500Vrms of input to output isolation. The output, constructed with an efficient MOSFET switch and photovoltaic die, uses IXYS Integrated Circuits’ patented OptoMOS architecture while the input, a highly efficient infrared LED, provides the optically coupled control. The combination of low on-resistance and high load current handling capability makes this relay suitable for a variety of high performance DC switching applications. The unique ISOPLUS-264 package pioneered by IXYS enables Solid State Relays to achieve the highest load current and power ratings. This package features a unique IXYS process where the silicon chips are soft soldered onto the Direct Copper Bond (DCB) substrate instead of the traditional copper leadframe. The DCB ceramic, the same substrate used in high power modules, not only provides 2500Vrms isolation but also very low junction-to-case thermal impedance (0.3 °C/W). Features • 22.8ADC Load Current with 5°C/W Heat Sink • Low 0.05 On-Resistance • 60VP Blocking Voltage • 2500Vrms Input/Output Isolation • Low Thermal Impedance: JC = 0.3 °C/W • Isolated, Low Thermal Impedance Ceramic Pad for Heat Sink Applications • Low Drive Power Requirements • No EMI/RFI Generation Applications • Industrial Controls / Motor Control • Robotics • Medical Equipment—Patient/Equipment Isolation • Instrumentation • Multiplexers • Data Acquisition • Electronic Switching • I/O Subsystems • Meters (Watt-Hour, Water, Gas) • Transportation Equipment #CPC1709J #IXYS #Littelfuse #SolidStateRelay #SSR #OptoMOS #PowerRelay #DCRelay #MOSFETRelay #HighCurrentSwitching #ElectricalIsolation #IndustrialElectronics #PowerManagement #BatterySystems #AutomationControl